FMC Bug in CubeMX

Posted on September 18, 2017 at 01:42

Hello,

CubeMX is missing some lines of code, so the FMC will not work with the generated code.

CubeMX Version: 4.22.1

CPU: SMT32F427VG..

First I configured the FMC for my TFT display with the standard libs and all worked fine.

Then I used CubeMX to generate the same code using HAL.

In general the code is correct, but two important things are missing in MX_FMC_Init():

1. at the beginning the FMC clock must be enabled: __HAL_RCC_FMC_CLK_ENABLE();

2. the GPIOs of the FMCs are not initialized as alternate function, so I added:

    GPIO_InitTypeDef GPIO_Init_Structure;

    GPIO_Init_Structure.Mode      = GPIO_MODE_AF_PP;

    GPIO_Init_Structure.Pull      = GPIO_NOPULL;

    GPIO_Init_Structure.Speed     = GPIO_SPEED_HIGH;

    GPIO_Init_Structure.Alternate = GPIO_AF12_FMC;

    GPIO_Init_Structure.Pin   = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_4 | GPIO_PIN_5 |

                                  GPIO_PIN_7 | GPIO_PIN_8 | GPIO_PIN_9 | GPIO_PIN_10 | GPIO_PIN_11 |

                                  GPIO_PIN_14 | GPIO_PIN_15;

    HAL_GPIO_Init(GPIOD, &GPIO_Init_Structure);

    GPIO_Init_Structure.Pin   =   GPIO_PIN_7 | GPIO_PIN_8 | GPIO_PIN_9 | GPIO_PIN_10 | GPIO_PIN_11 |

                                  GPIO_PIN_12 | GPIO_PIN_13 | GPIO_PIN_14 | GPIO_PIN_15;

    HAL_GPIO_Init(GPIOE, &GPIO_Init_Structure);

with this additional code everything works perfectly.

Maybe one of the CubeMX programmers can look at this issue and add this code into the automatic program generator.

Harry